Clean Water Act discharge permit · NPDES IA0032760
RENWICK CITY OF STP, Renwick, IA: NPDES IA0032760 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
RENWICK CITY OF STP, held by CITY OF RENWICK, holds NPDES permit IA0032760. EPA’s file records it issued March 1, 2018 and expiring February 28, 2023.
RENWICK CITY OF STP, Renwick, Iowa: Individual permit IA0032760, held by CITY OF RENWICK; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued March 1, 2018, term to February 28, 2023, by STA; Sewage Treatment Facilities.
- pH: 5 limits, 69 violations of any kind, 13 effluent exceedances, latest May 31, 2026.
- Nitrogen, ammonia total [as N]: 48 limits, 3 violations of any kind, 3 effluent exceedances, latest June 30, 2023, largest 161% over the limit.
- Solids, total suspended: 10 limits, 59 violations of any kind, 1 effluent exceedance, latest October 31, 2006, largest 40% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 5 limits, 59 violations of any kind, 0 effluent exceedances.
- Annual Nitrate Nitrogen Discharged: 0 limits, 30 violations of any kind, 0 effluent exceedances.
- BOD, 5-day, 20 deg. C: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, nitrate total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- E. coli: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Depth of pond or reservoir in feet: 3 limits, 0 violations of any kind, 0 effluent exceedances.
Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 328 were issued before IA0032760.
Coverages issued nearest IA0032760
- February 1, 2018: WOODBURN CITY OF (SIRWA), Woodburn, IA0075256, held by SOUTHERN IOWA RURAL WATER ASSOCIATION
- February 1, 2018: HARCOURT, CITY OF STP, Harcourt, IA0076244, held by CITY OF HARCOURT
- February 1, 2018: DICKENS WASTEWATER TREATMENT FACILITY, Dickens, IA0080691, held by IOWA LAKES REGIONAL WATER
- March 1, 2018: FARNHAMVILLE CITY OF STP, Farnhamville, IA0028967, held by CITY OF FARNHAMVILLE
- March 1, 2018: VILLISCA CITY OF STP, Villisca, IA0032549, held by CITY OF VILLISCA
- March 1, 2018: PETERSON CITY OF STP, Peterson, IA0033677, held by CITY OF PETERSON
- March 1, 2018: CLINTON CITY OF STP, Clinton, IA0035947, held by CITY OF CLINTON
- March 1, 2018: SWALEDALE, CITY STP, Swaledale, IA0073903, held by CERRO GORDO COUNTY
- March 30, 2018: SAC AND FOX SETTLEMENT LAGOON, Tama, IA0073750, held by Sac and Fox Tribe of the Mississippi in Iowa
- April 1, 2018: ASHTON CITY OF STP, Ashton, IA0024457, held by CITY OF ASHTON
RENWICK CITY OF STP among its neighbors
EPA’s permit file holds 2 discharge permits in the Joint Drainage Ditch 3-Boone River subwatershed (HUC 071000050601), IA0032760 among them. Its county holds 9, 2 of them major permits; IA0032760 is a minor permit.
Other permits in the Joint Drainage Ditch 3-Boone River subwatershed (HUC 071000050601)
- REMSEN CITY OF STP, Remsen: IA0036030, minor permit, permit term to November 30, 2025
Identity
| Facility as filed | RENWICK CITY OF STP |
|---|---|
| Permittee as filed | CITY OF RENWICK |
| NPDES ID | IA0032760 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 1, 2018 |
| Expiration date | February 28, 2023 |
| Issuing agency | STA |
| Address | Renwick, IA 50577 |
| Subwatershed | Joint Drainage Ditch 3-Boone River (HUC 071000050601) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 9Pollutants on file
- 8Under a numeric limit
- 5With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| pH | 5 | 69 | 13 | May 31, 2026 | |
| Nitrogen, ammonia total [as N] | 48 | 3 | 3 | June 30, 2023 | 161% over the limit |
| Solids, total suspended | 10 | 59 | 1 | October 31, 2006 | 40% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 59 | 0 | ||
| Annual Nitrate Nitrogen Discharged | 0 | 30 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 0 | 0 | ||
| Nitrogen, nitrate total [as N] | 5 | 0 | 0 | ||
| E. coli | 3 | 0 | 0 | ||
| Depth of pond or reservoir in feet | 3 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0032760.
Inspections
EPA’s inspection file holds no inspection for NPDES IA0032760.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES IA0032760.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.